Rocker-step connection



Jply 9,1990.v P. R FORMAN 1,769,946

ROCKER STEP CONNECTION Filed Sept. 29, 1927 Patented July 8,1930

Unire STAT-ss Pa'iEN'il orties PARIS R. FORMAN, OF RAHVV'AY, NEW JERSEY, ASSIGNOR TO NATIONAL PNEUMATIC COMPANY, OF NEW YORK, N. Y., A CORPORATION OF WEST VIRGINIA l ROCKER-STEP CONNECTION yApplication filed September 29,1927. Serial No. 222,783.

This invention relates to a rocker step connection of a type similar to that disclosed in my copending application Serial No; 875,829 tiled February 4th, 1926, now Patent No. 1,664,811 of April 8, 1928.

One of the objects of this invention is the provision of a rocker step connection foi use on vehicles in which the connections from the rocker step and the operating means are very short.

A further object of this invention is the provision of a device of this type which is relatively simple in construction and cheap v`to manufacture.

Other objects will appear from the following description.

j This invention resides substantially in the combination, construction, arrangement, and relative location of parts as will appear more fully hereinafter.

`Referring to the drawings- Figure 1 is a side elevational view of the device, v

VFigure 2 is a top plan view, and

Figure 3 is an end elevational view.

`Oii vehicles which have envine o erated doors and rocker steps it is usual toprovide connections underthe platform of the car for connecting the door operating shaft with the Y shaft which operates the step. In some forms of construction these connections are very short and with the usual form of connection now used there is a tendency for the operating mechanism to jam. This device has, therefore, been devised to permit motion of the operating parts in such directions as to prevent its amming. 1

Referring to the drawings, a devicer is shown comprising a base member formed of a continuous strip of metal having two double bends 2 and 3 formed therein to provide supporting projections.v These projections are provided kwith aligned holes and holes 4 are provided therein for attaching the base or support to the under side of the-car platform. A pivot pin 5 is secured in the holes in the projections and has pivotally mounted thereon a short arm 6 which is bifurcated at each end to provide the short arms 7 and 8 respectively.

portion within which is mounted the rotatable pin 9 which overhangs the two arms 8 at each end. One end of the pin 9 is flattened at 10 and is provided with a hole therethrough. From this construction it will be seen that the pin 9 can both rotate and slide in the arms S. The purpose of this rotation and sliding being toimpart to any element connected to the structure at 10 a versatility of motion; and the creation, in substance, at the bifurcated end of a universal joint, thereby eliminating all possibility of jamming of the rocker step connection, such as is prevalent when prior art connections are used.

It will be apparent that I have devised a relatively simple construction for the purposes intended and I do not desire to be limited except as required by the appended claims.

What I seek to secure by United States Letters Patent is:

1.A In a rocker step connection, a support-ing member, an arm pivotally mounted thereon,

being adapted to slide and rotate in said bifurcated outer end of said arm.

Y 2. In a rocker step connection, a supporting member, an arm pivotally mounted thereon, and an overhanging rotatable pin journalled in the outer end of said arm, said pin being adapted to slide and rotate in said outer v PARIS R. FORMAN. 

